Last month the American Optometric Association suggesting kids six and under can play Nintendo's 3DS as long as
their visual system is developing normally. But 3D TV manufacturer Samsung Hidden Content that "children and teenagers may be more susceptible to health
issues associated with viewing in 3D and should be closely supervised when
viewing these images." And Nintendo itself Hidden Content
that "very young children not look at 3D images...because...the muscles for the
eyes are not fully formed."